Washing brush

ABSTRACT

The present invention is directed to a washing brush in which a core for fixing washing threads can keep a straight shape thereof rigidly and the threads are fixed to the core uniformly, densely, and rigidly, so that it can be properly applied to an automatic washing device and also prevent the threads from being separated from the core. The present invention provides the washing brush comprising a core having a recess formed at a circumference thereof along an axial direction with a predetermined distance, and a wing formed between the recesses; a plurality of fixing rings surrounding the circumference of the core; washing threads bent at a middle portion thereof, wherein bent portions thereof are caught at each fixing ring and are inserted in the recess; and a fixing means provided to the core and making the rings in close contact with each other.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention is related to a brush, more specifically a washingbrush for washing contaminants off an object.

2. Background of the Related Art

It is general for a washing brush to comprise a plurality of washingthreads fixed to a core. This washing brush is repeatedly moved straightand is rotated to rub the threads on the article for removingcontaminants on the object.

FIG. 5 and FIG. 6 show a typical example of a conventional washing brushcarrying out washing as mentioned above.

A washing brush 100 as shown in FIG. 5 uses wires 111 as a core 110. Aplurality of washing threads 120 made of synthetic resin or naturalmaterial are located between two wires 111, and are fixed between thewires 111 by twisting the wires 111. The fixed threads 120 forms acircular bar shape.

A washing brush as shown in FIG. 6 uses a circular bar 211 as a core210. Washing threads 220 are implanted with a constant distance to thecircular bar 211 to be fixed thereto, and the fixed threads 220 forms acircular bar shape.

In performing washing by straight movement or rotational movement usingthe above conventional washing brushes, in cases of the washing brush100, as the core 100 is made of the relatively small wire 111 and cannot keep a straight shape constantly, such washing brush 100 is properfor manually washing small objects such as a baby bottle and a glassbottle, but improper for a device such as an automobile washerautomatically washing the object by power of a motor and a cylinder.

Meanwhile, in case of the washing brush 200, as the circular bar cankeep the straight shape constantly, the washing brush 200 can be usedfor manual washing as well as for a device automatically washing by thepower. However, it is often case for such washing brush 200 that thewashing tread 220 come out of the circular bar 211.

Additionally, as there are some limitations for fixing threads 100, 200to the washing brushes 100, 200 to be uniform and dense, high precisionwashing using the conventional brushes is difficult.

SUMMARY OF THE INVENTION

The present invention is contemplated to solve aforementioned problems,and has an object to provide a washing brush in which a core for fixingwashing threads can keep a straight shape thereof rigidly and thethreads are fixed to the core uniformly, densely, and rigidly, so thatit can be properly applied to an automatic washing device and alsoprevent the threads from being separated from the core.

To accomplish above objects, the present invention provides a washingbrush comprising a core having a recess formed at a circumferencethereof along an axial direction with a predetermined distance, and awing formed between the recesses; a plurality of fixing ringssurrounding the circumference of the core; washing threads bent at amiddle portion thereof, wherein bent portions thereof are caught at eachfixing ring and are inserted in the recess; and a fixing means providedto the core and making the rings in close contact with each other.

The threads are caught at the fixing rings and are inserted in therecesses, and a spacer is inserted between the fixing rings so that thethreads spread out uniformly.

The fixing means is comprised of a supporter formed at one end in alength direction of the core and projecting outwardly in a radialdirection, and a fastening member fastened to the other end in thelength direction of the core.

By the present invention mentioned above, as the bent portions of thethreads are caught at the fixing ring, are inserted in the recess of thecore, and are fixed by the close contact between the adjacent rings, thethreads are not separated from the core.

In addition, as the core is made of the iron core excellent in keep thestraight shape constantly, the washing brush can be properly applied tothe device for automatically washing an object by a power of the motorand the cylinder.

Also, as the threads are uniformly distributed along the circumferentialdirection and are densely disposed due to the close contact between thefixing rings, the washing brush can perform a high precision washing.

BRIEF DESCRIPTION OF THE DRAWINGS

The features and advantages of the present invention will be moredescribed specifically in the following description of preferredembodiments of the invention with reference to the accompanying drawingswherein:

FIG. 1 is an exploded perspective view showing a washing brush accordingto the present invention;

FIG. 2 is an assembled sectional view showing the washing brushaccording to the present invention;

FIG. 3 is a sectional view taken along A-A line of FIG. 2;

FIG. 4 is a sectional view showing another embodiment of the presentinvention; and

FIG. 5 and FIG. 6 are a sectional view and a sectional view showing aconventional washing brush.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Reference will now be made in detail to an embodiment of the presentinvention, examples of which are illustrated in the accompanyingdrawings. In explaining the present invention, the same names andreference numerals will be given to the same components, andexplanations in the same will be omitted.

FIG. 1 is an exploded perspective view showing a washing brush accordingto the present invention, FIG. 2 is an assembled sectional view showingthe washing brush according to the present invention, and FIG. 3 is asectional view taken along A-A line of FIG. 2.

In the present invention, a core 1 is made of an iron core excellent inconstantly keep a straight shape thereof.

Recesses 11 of a V-shape are formed at a circumference of the core 1along an axial direction with a predetermined distance, wings 12 areformed between the recesses 11, and a screw 13 is formed along a lengthdirection at a circumference of an outer edge of the wing 13.

A plurality of fixing rings 2 for fixing washing threads are disposedsurrounding the circumference of the core 1 and the washing threads madeof synthetic resin or natural material having a good washing ability arefixed to these fixing rings 2. The fixing ring 2 can make density of thewashing threads fixed each ring to be uniform by having a thinthickness.

A middle portion of the washing thread 3 is bent, and this bent portion31 is caught at an inner circumferential surface of each fixing ring 2and is inserted in the recess 11. A plurality of threads 3 are insertedinto each recess 11 with a form of bundle and thus when the fixing rings2 are closely contacted with each other, the threads 3 spread out in acircumferential direction to be uniformly distributed. In such instance,it is preferable that the threads 3 are caught at the fixing ring 2 andinserted into the recess 11 and a spacer 2 a identical with the fixingring 2 is between the fixing rings 2 so that the threads spread out moreuniformly without friction between the threads 3 fixed to adjacent rings2.

The fixing rings are closely contacted with each other by fixing means4.

The fixing means 4 includes a supporter 41 formed projecting outwardlyin a radial direction at one end in a length direction of the core 1 andfastening member 42 fastened to the screw 13 formed at the other end inthe length direction of the core 1.

The present invention illustrates an embodiment wherein the supporter 41is formed conical so as to be a rotational center of the core 1.

With a configuration of the fixing means 4 as mentioned above, when thefastening member 42 is fastened to the screw 13 of the core 1, thefixing rings 2 around the core 1 are closely contacted with each other,and the threads 3 coupled to the rings 2 are uniformly distributed andrigidly fixed with spreading out in a circumferential direction.

As shown in FIG. 2, the threads 3 performs washing operation by rotatingthe core 1, with the core 1 having a good maintenance of the straightshape being connected to a motor M (or a cylinder) of an automaticwashing device, and an end portion of the supporter 41 being coupledinto a hole F′ of a supporting frame F.

In the present invention, as the bent portions 31 of the threads 3 arecaught at an inner hole of the fixing ring 2 and are fixed by a closecontact between the rings 2 with being inserted in the each recess 11,the threads 3 are not separated from the core 1 during the washingoperation.

The present invention mentioned above only explains one preferredembodiment of the preset invention, and does not limit the scope of thepresent invention. That is, as shown in FIG. 4, the number of recess 11formed at the core 1 can be increased and the supporter 41 can be formedto be a ring shape appropriate for coupling a bearing thereto, and it isapparent that such modifications are included within the scope of thepresent invention. In addition, although the above specificationdescribes the washing brush applied to the automatic washing device asone embodiment, this washing brush can be applied to a small manualwashing apparatus as well. Also, if the core 1 becomes long, thefastening member 41 is coupled to the core 1 per a predetermined lengthof the core 1 in order to allow the rings 2 to be properlyclose-contacted with each other and then to form the brush.

The advantages of the washing brush according to the present inventionare summarized as follows.

In the present invention, since the bent portions of the threads arecaught at the fixing ring, are inserted in the recess of the core, andare fixed by the close contact between the adjacent rings, the threadsare not separated from the core. As the core is made of the iron coreexcellent in keep the straight shape constantly, the washing brush canbe properly applied to the device for automatically washing an object bya power of the motor and the cylinder. Additionally, as the threads areuniformly distributed along the circumferential direction and aredensely disposed due to the close contact between the fixing rings, thewashing brush can perform a high precision washing.

Although a number of embodiment have described in the abovespecification, it should be apparent that the present invention could beembodied in many other specific mode included within the sprit and scopeof the present invention. Thus, the present embodiments should beconsidered as illustrative, and the present invention could be modifiedwithin the scope of claims and the equivalent thereof.

1. A washing brush comprising: a core having a recess formed at acircumference thereof along an axial direction with a predetermineddistance, and a wing formed between the recesses; a plurality of fixingrings surrounding the circumference of the core; washing threads bent ata middle portion thereof, wherein bent portions thereof are caught ateach fixing ring and are inserted in the recess; and a fixing meansprovided to the core and making the rings in close contact with eachother.
 2. The washing brush according to claim 1, wherein the threadsare caught at the fixing rings and are inserted in the recesses, whereina spacer is inserted between the fixing rings.
 3. The washing brushaccording to claim 1, wherein the fixing means comprising: a supporterformed at one end in a length direction of the core and projectingoutwardly in a radial direction; and a fastening member fastened to theother end in the length direction of the core.